Knife-blade-squaring machine.



R. oonn. KNIFE BLADE SQUABIHG MACHINE APPLICATION FILED 0012, 1912.

Patented Dec.10,1912.

2 SHEETS-SHEET '1.

WITNESSESQ .T. R. MOORE.

KNIFE BLADE SQUARING MACHINE. APPLICATION FILED 00122, 1912 2 SHEETS-SHEET 2.

WITNESSES: l/WE/VTUR Gym/(k @rM BY Patented D60. 10, 1912.

i The v THOMAS R.' Moonnbr waLnnm-nnwironx .rrnrrnmmnn-snanme MACHI-NE.

TovaZ-l huh-omit! may concern:

h -il 3e, it known that I, Tnonas R li-loonln a c1t-1zen o-flthe United States, and-a resident of \Valdeniin the county of Orange-"and.

"5 State of New York, have invented certainnew; and useful Improvements in Knife- Bla cl e- Squaring Machines, of-whichthe following is a specification.

The objector the inventionis to provide t lo' a machine with the use of which the .-tang portions of knife blade-smay be suitably, uniformly and-rapidly squared or treated at their-front, back and outer end edges and thereby adaptedfo-r the customary handles is of pen. and pocket-knives;-

v I preferably construct-'- my machin'e witli two grinding or abrasive wheels, one adapt-1 ed to the squaring of pen blades and the c-ther'to' the squaring of".p0c et blades,

21) and with twosetsofmechanisnn one for each wheel andeach comprising a bed which may be adjusted toward and from the wheel,

a'horizontal guide thereon-standing at an; angle to the axis ofthe wheel. a blade sup- 25 pcrting slide mounted on-i said guide, and

-means for. effecting the movement of said.

slide along thecutting edge of the wheel for enabling the latter to remove the'exposed iportionsof the tangjof the blade projecting 3!) beyond the edge of the slide, said slide pref-I eiably being adapted: to hold the blade in three pcsitions'so that during the operationofthe machine the tang of the blade may first have its back edge, then its'end'edge and" finally its front edge squared, the three edges of the tang being with the use of the one wheel squared. Whenthemach me'of any invention is provided with two grinding --.or abrasive wheels,v said wheels. may be. 40 driven by power from a single shaft 'and one wheel maybe'employedfor the squaring 0f'pen bladesand the other for the squaring of pocket bladesffand two operatives may 'be engagedatthe machine, each with his ownclass-of'blades and neither; interfering The machine; may, however, be provided with grinding or -with the work of the other.

abrasive wheels adapted -*solely for pen lblades 'or solely for pocket blades. but,

preferably I will equip the machine. with one grinding or abrasive wheel intended forthe squaring of pen blades and-anotherignnd, in" or abrasive wheel adapted for the squar-- in? of pocket blades. e

from th nvention will 'be fully l ib' e detailed :description hereinaft u Speeifioation of Letters Patent. Patnted Dec. 1912. Application filed Obtober 2 1912. sena1m. 723,'4sr.

present-ed, reference" beinghad. to the ac company1ng drawings, in which:;

' Figure 1- is a top view'of a machine con-- .structed in accordance with and'embody'ing the invention Fig.'-2z-is' a front elevation -of the right hand side portion ofthe same ;'Fig.- 3 1s a detached side elevation of one of the devices for; aiding improperly locating and holding a knife blade on the blade-carrying shdeformmg a part of the machine; Fig.-

4 is a rear elevation, -taken at-a' right-angle ."to'thelrear-face thereof, of the-guide and kn1fe-bl ade-carry1ng slide thereo'n,-the' lever mechanismfor efiectinglthe movement of said slide omfsaidgiiide being partlyv broken away; 'Figzxo i's =-a'. verticaltransversesection through thesa-me onfhe dot-ted line 5 '5 of Fig. 4,- and Fig; 6 is atop view of thebladecarrying slide and-a portion of one of the grinding cr abrasive wheels and illnstrating the three positions for the blade, the dotted blade-outline at left handpa-rt of the figure showing the position-for the blade when the back edge of the" tang. thereof is to -'be s uared, the middle dotted blade-outline denoting the position-for the blade when the end. of thetang is" to be squared, and the left hand. position of'the blade represented by solid.linesbeing the one'necessa-ry when the front edgeof thetang islto be squared.

' In the drawings, 15 designates the general frame of t'lie'machine suitably supporting a driving shaft ilG; provided with a belt-wheel inu of p ocket bladesitj The shaft'16 and.

wheels 18,.19 {may be driven by power through a suitable-belt"appliedto the whee 17 or otherwise as may be -pre ferred. q

At the frontof each grinding or abrasive wheel 18, 19, the general framej15 extends front-wardlyfiorming frame extensions 20, i

21, respectively uponfeacjh' of :which is mounted a, set 0% I inventionand adapted for the pro-per handling of the blade 'to enable the wheel to effect; the squaring of the tang portion v thereof. The mechanismslprovided. upon'the frame extensions 20, 21, correspond wlth each other with the single exception of the mechanism embracing my 4 :iforma'tionfof.the edge. of the blade carry- 'ing slide adapting the slide'at left'hand chine frame. and thenbriefly refer tothe with an'adjusting screw- 24. for enabling the the like, a guide block or .-bar 28, said guide which bolts'may be passed for, securing the guide upon the bed plate-23. The guide 28 side-of the machine'for pen blades, while first describe in detail the blade-mechanism .machine and afford a support and tramway -.groove's to ride on said Vs or rails in a 19' as thelatter becomes worni lVhen the bed 23 has'been adjusted to its desired po- -rectangular fiat plate, and upon said plate the left, these being the directions ofithe I guide 28 is provided with a rigid stop 31.

'tion 33 of the slide 32 extends the slide atthe right hand side of the ma. chine is adapted for pocket blades; I will provided "upon the extension 21 of the masubsta-ntiallyf I correspondihg mechahism mounted upon the extension 20 of said Theextension' 21 is formed integrally with'two-parallel' Vsor rails 22 said extension. toward the-rear part of the forthe bed plate 23 which is formed with customary ananner and 'which is equipped convenient adjustmentof the bed plate to its correct position; with relation to 'the grinding or abrasive 'wheel' 19 and any necessary readjustment of said bed and the parts carried thereby towardthe said wheel sition' it will be fastened' in a customary manner by means of a bolt 25enga ing a' washer or the like 26 connected with the bed plate. The adjusting screw 2% and securing bolt-25 are common expe'dients in machine constructionand arenotclainied herein. The bed plate 23 is substantially a plain is rigidly secured by'means-of bolts 27.01

QS-being in the form of an elongated 'block of metal.- having cars 29 (Fig. 5) through extends at an angle to the longitudinal line of the shaft l6,'and inthe main the guide is substantially parallel with the'beveled edge of the grinding or abrasive wheel in connect-ionwith which it is used. The guide 28 for the grinding or abrasive wheel 19 inclines inwardly toward the right while the corresponding guide for the grinding or abrasive wheel 18 inclines inwardly toward beveling on. the peripheries of the grinding wheels. The guide 28 has a flat upper surface and a fiat rear wall, and at its upper inner. edge the upper portion 'of the guide is formed with a forwardly projecting flange 30. At its vertical front portion the which will be hereinafter referred to. 1

Upon the guide 28 is mounted the blade carrying slide 32, which has a substantially at upper surface and at its front and rear edges has depending portions 33, 34, respectively-which pass upon and engage the i upper portions of the guide '28; as shown 3 The orbelow the E fiange30 on" the guide 28'andaids' in holdt more clearly in Figs. at and 5.

- in connection -edge-of the guide 28.

ing the slide firmly upon the guide. A ens-1 tomary gib 35 may be provided between the portion 33 of the slide and the flange 30. of the guide. with two 'depehding lugs 36 carrying set screws 37 at oppositesides of the stop 31, as shown in Fig. 2, and these set screws 37 with the stop or lug 3 1 ar e employed to control and limit. the movement the. slide 32 ma'y have upon the upper r Theslide 32 is connected by a link 38 with an arm 39 of a pivoted. operating handle 40, which under the manual' control1'of--tl1e operative, is utiliz ed to effect the proper sliding movement of the slide 32 'on the guide 28 during the operation of, the grinding or abrasive wheel 19, as will appear more fully hereinaften' The slide 32 has secured upon its upper face a hardened plate 4,1,which isa work-or fac plate and may be considered as a 'permanen'tpart of the-slide. The plateel is formed along its rear; edge with a main :(Fig. 6), one end of which is open and concaved .or rounded, as at- 43, and the other end of' which terminates in, an acute angle The plate 41 is formed with three-re- The slide 32 is provided:

recess, which I number 42 for identification I cesses 01" slots 45-"cutinwardly from the recess 42 and extending at right angles thereto.' Within the slide 32 are three parallel. cylindrical openings extending transversely to the length of the same,'and within each of these openings I provide a cylindrical follower or rod 46 having upon its inner or rear end a vertical pin -17 and engaged 'at its front end by an adjusting screw 48 whose external thread engagesjan internal thread formed within the forward tubular part of the rod 46. The screw 48 has an exposed. polygonal end 49 which may be engaged by a key'or thelike for rotating the screw, and adjacent to the outer portion of the screw the head thereof is formed with 'an annular groove 50 into which is entered through the top of the slide 32 a pin or stud 51 which permits the screw .48 to have a rotary motion but prevents the screw. from moving in-line with its length. The pins 47' on. the rods 46 are employed to aid in securing the .knife-blade, which I number 52, in its several positions on the work plate etL'and the screws 48 are provided to enable the adjustment of the pins 47 with respect to the correct positions desired for said blade in accordance with its size and position by solid, lines. and its conditiorr that the front squaring of the tang of the ,blade has just been completed, the

squaring of the back of the tang having been finished when'theblade was in the position shown by the left hand dotted lines in Fig; I 6 and the end of itstang having been squared ifwhen the bladewas in the middle bladeposition denoted by dotted lines in Fig. 6.

. The pins 47 project upwardly above, the

-1 upper plane of the work-plate 41 and are of proper diameter .to snugly receive upon them the pin hole in the tang of the blade 52 Upon the slide '32 I also provide gages 53', 54: and 55 carrying vertical studs or pins 56,

' 57,'--58 respectively, to aid in maintaining the blade 52 in its several positions, said gages also beingadjustable by means of set "screws 59 for properly locating the studs or pins 56, 57, 58 with respect to the size -go'a nd character of the blade 52. \Vhen the blade is laced in its first position, shown at the is t hand side of Fig. 6,' by dotted lines, the tang of the blade is placed upon the left hand one of the pins 4.7 and its back moved'against the pin 56, a portion of the tang of the blade when in. this position being projected intothe recess 42 at the inner .or rear. edge of the plate 41, and thereupon the slide 32 will, by means of the handle lO, be moved to carry such exposed. 4 portion of the tang blade againstthewheel 19 which, as the shde is gradually moved to.

carry said tang against it, will operate to cut away such. exposed portion of the tang and leave the blade squared at its backedg e in the manner represented at the left hand side of Fig, 6; After the back of the tang of the blade has "been squared, the bladewill j be elevated from the left hand pin l7 and 40 placed on themiddle pin 47 and have its back edge stayed by the pin 57, the end of the tang then" projecting slightly beyond the work-platel and into the're'cess 42, and thereupon the operator, 'by means of the handle 40, will gradually move the slide32 to carry the blade against the wheel 19, with the result that said wheel will grind oil or square 'the end of; the tang of the blade. Thereafter the blade will be elevated from 50 the middle pin 47 and placed on the right into the recess 42 at the edge of the workplate 4C1, and. thereupon the operator by means of .the handle-A0 will move the slide 32 toflcarry the thus exposed portion of the [front of the'tang againstthe wheel 19 so that said wheel may remove said projected portion and thereby square the front of the tang or reduce it .to the finished cond tion illustrated in Fig. 6.

finger upon the exposed upper face ofthe' blade so as to aid steadying the same upon the work-plate'and holding it firmly down thereon After the blade 52 has had its frontsquaring completed'it will be removed from the work-plate 41 and thereupon another blade may be placed-onthe work-plate in the threes'uccessive positions illustrated 1n Fig. 6 and have its back, end and front squarmg completed,- it being the intention that one blade after another -.shall be treated on the work-plate 41, and'that said workplate shall be actuated to carry the blade to of the tang. The parts of the machine are adjustable so as to adapt the machine to blades .varying in size and other characteristics. The screws 48 are utilized to so 10; cate the holding pins 47 for the tang of the blade as to control the exposure of such tang beyond the edge of the plate 41 and thereby regulate the quantity of metal which shall be removed from the tang by the grinding wheel vl9, The gages 53, 54, are also adjustable to properly locate the pins 56, 57, 58 with respect to the special character of blade under treatment. The slide 32' carrying the work-plate 41 may be controlled in its movements by the stop 31 and adjustable stop-screws 37, and as the periphery of the grinding wheel wears down the bed-plate 23 may be adjusted toward said wheel by means of the screw 24.

. The mechanism provided on the extension 20 of the main frame 15 is a counterpart of .the mechanism provided upon theextension 21 of said frame and which'has been described in detail, with the single exception? that the work-plate at the left hand side of the machine and which being possibly 'a modification I will designate by the numeral the end-curvature 453 of the recess 42 in the work-plate 41 shown at the right hand side of the machine, but on the contrary is pro vided with an angular recess (31 of the character requisite for. the squaring of penblad'es. I will, therefore, number the several parts ofthe, mechanism upon the QXtC-Hsiun 20 (f the general frame correspondingly with the like parts he'rembefore described as being above the extension '21 of said frame. since said mechanism above the extension 20 m 60, is not form'ed'at the end of its recess with will be clearly understood without special During the action of the wheel 19 against deta led explanation. .T he grinding wheel 6? the-blade 52, the operator will press with his '18 instead of having one rounded peripheal edgefhais sharp peripheral eoges correspondmg withthe'recesses 61, 62 at the edge ofthe 7 1work=plate 60, and except for the shape of the pe'ripheral edge of the grindingwvheel 18 and-the presencejof the angular recess 01 in the Work-plate 60, the mechanism at the left handside of the machine corresponds'avith the mechanism. at the right hand side thereof.-

\ With-the' two sets of mechanism'provided in one maehme, one setbeingintended for,

squaringgpen-blades: and the otherf 'poeket blades, and both' grinding vwheels 'being dr ven from one 'shaft,.t-he squaringof blades maybe performed economically andira-pidly and '-'with: the presence of two operators at each machine.-

I a to secureby Letters Patent-,"is:

What Ielaim as mv invention'a nd desire LI'A- machine for. squaring the tangs of 2Q knife blades eomprisin'gagrinding wheel having a beveled periphery, as'lide extend- 1nflgat an angle to the axis of said wheel and a orpositioning the blade aonsaid slide with a portion of; the tang of the blade exposed beyond the' edge thereof,.-and means for moving said. slide to carrythe expo'sed -por'- tion of said tang'a'lon .30 21A, machine for squaring the tan'gs of pknife bladescomprisinge grinding wheel hav nga beveled periphery, a slide extendf mg at ail angle to the axis of said Wheel and affording a support for ajknife blade, means for positioning the blade on said slide with 'a' portion of thetang. of the blade exposed .beyond the edge thereon-means foradjusting .saidslide transversely toward said Wheel,

.and means'for moving said slide to carry the 40 exposed portion of said tang along and 'againstthe periphery of said wheel.

3. A machine for squaring the tangs of knife blades comprising a grinding'jwheelhavmg'abeveled periphery, a s11dejextend'-.

5 ingat an angle to the axis -of said [wheel and afl'ording a support for a knife blade,

. adjustable means carried bysaid slide for positloning the blade thereon and control iling theex'tent of, the-tang portion ofthe blade to be exposedfor removal beyond the [edge ofthe. slide, and means for-moving ,said slide to carry the. exposed portion of.

said tang alongfiand against the periphery 101 said wheel. the said adjustable means carried by the slide comprising a gage there- 4 on for engaging the'edge of the blade and;

,a transversely adjustable rod having a verti c al pin to engage the pin-holein the tang of the blade.

A. machine for squaring the tangs of knife blades 'mpiasng a'grinding Wheel having a beveled periphery, a slide extending at an angle'to the axisiof said wheel and affording a support for blade, adjustablomcans carried byfisard sl de iiqg ording a support for knife blade, means-- positioning the blade thereon and controlling the extent of the tang portion'ot-the' blade. to be exposed for removal beyond the edge .of the slide, and means for moving 4 'said' slide to carry the exposed. portion of said tang along and against the periphery. of said \vheel,- the sa'id ad ustable means carr edby the slidecoinprising. agage thereo 1 to.

engage the edge of the blade,.a transverselv slid'able rod having a Yertical pin jexposei'l "to enfgageth pin-holein1 tl1e'tang of the blade and a I 1OI1:Sl1(lt1bl 0,$ C I EW having a .tlu-ead-connection with, said rod and "a head to be' engaged bymeans for: turning the screw. J j o. A machine for-squar ng the tangs of 4 knife blades comprising. a ghi'ndnig -wheel having a beveled periphery, a slide extendg' i ingat an "angl-e'to' theasdg of i'd wh l 'and affording 'a support for. af ,kn ife blade,

a pluralityyoi-means-forpositioning theblad'e eii saidslidelavi th the several edge portions of its tang. to befremoved successively expcsed beyond-theedgezof'the slide, and means for moving the's'lide to "carrv' the successively exposed portions .of'saidf tang along, and against the periphery of :said'tvheel.

1 i '6. A machine for squaring the tangs of kn fe blades compr singa grinding wheel having a beveled'p'er phery1 slide extend successively exposed .portions of said tang along and against the periphery of said wheel, said means for posit-ioning'the blade comprising gages on the glidefto engage the edge of the .blade -in-its several positionsof the lat-ter', and' transversely adjustable rods havingivertical pins exposed-to engage the 1 pin-hole in the tang inthe several positions -of theblade. p

- 7. A machine for squaring the mugs of knifeblades comprising a"'grinding wheel having a beveled periphery, a slide extending at an angle to the axisof'said wheeland 'ali'ordingl a support for a'kni fe blade, aplurality of means for positioning the blade on said slide with the-several edgefpor'tions of Hits tang to be removed successively exposed g beyondthe edge ofithe slide, and means for moving thslide to. carry the successively "exposed portionsaof said tang alongQand' against the-periphery of said-Wheel, said.

means-for positionin gthe bladeicomprising three-adjustable gages on the slide to engagethe' edge of theblade in the three positions of the latter sucoessivelyexposmg the back edge, outer end edge and -front edge of its m q di the sl de, three parallel trans- I a versely adjustable rods within said slide and three positions of the blade, and non-slidable screws respectively having thread-connection withsaid rods and heads to be engaged by means for turning the screws.

8. A machine for squaring the tangs of ,knife blades comprising a grinding .wheel having a beveled periphery, a slide extending at an angle to the axis of the wheel and afiording a support for a knife-blade and recessed at its edge adjacent to the wheel for exposing beyond said edge and within said recess such-portion of the tang of the blade as it ma be desired to remove, means for moving said slide to carry the exposed portion of said tang along and against the peripheryof said wheel, and means for limiting the movement of said slide.

9. A machine for squaring the tangs of 'knife blades comprising a grinding wheel having a beveled periphery, a slide extendin at an angle to the axis of the wheel and 'afli Ordmg a support for a knife blade and recessed at its edge adjacent to the wheel means for successively positioning the blade on said slide with the several edge portions of its tang to be removed exposed within said recess, means for moving said slide to carry the exposed portions of said tang along and against said wheel, and means for limiting the movement of said slide.

10. A machine for squaring the tangs of knife blades comprising a main frame, tw'o oppositely beveled grinding wheels, a driving shaft common to said wheels and mounted in bearings on said frame, slides mounted on sa d frame and extending at angles, conform-mg to the bevehng of said wheels and each affording a support for a knife blade,

means for adjusting said slides transversely toward said wheels, a plurality of means on each slide for positioning the blade there on with the several edge portions of the tang to be removed successively exposed bevondthe edge of the slide, means for moving the slides to carry the successively exposed portions of the tangs along and against said wheels, and means for limiting the movements of said slides.

Signed at \Valden, in the county of Orange and State of New York, this th day of September A. D. 1912.

THOMAS E. MOORE.

\Vitnesses A. S. EMBLER, C. R. TEARSE. 

